unexpressible

== English == === Etymology === From un- +‎ expressible. === Adjective === unexpressible (comparative more unexpressible, superlative most unexpressible) Impossible to express; inexpressible. ==== Derived terms ==== === References === “unexpressible”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.